I read the link you posted and tried to find the posting on Area 51 Zone
but was unsuccessful. However, I now
understand how you could come to the conclusion you did.
I can easily see how a number of sightings that reported a black triangular aircraft with little to no engine noise could lead you to believe that the
airframe in question was a glider, or at least had a gliding capability, but I would caution against taking all those reports at face value.
The one you quoted from area51zone.com, while interesting, is highly suspicious. Altitude and velocity are notoriously hard to gauge for aircraft, as
one has no visual references to compare it to. For instance, you can vaguely guess the speed of a car and it's distance from your eye by the speed at
which it passes objects in it's vicinity. This is untrue for an aircraft, and made even more improbable when even the true size of the aircraft is
unknown. Thus this sighting report, even if true, is virtually useless in determining the technical aspects of the airframe.
The other link you posted immediately raised my suspicions. First was the fact that it was a geocities account. Anyone, can put up a geocities
webpage, and since it is a personal website they have no need to vet the information they put on the page. This in itself is not enough to dismiss the
"evidence" it puts forth, but it should be considered.
Secondly, I noticed this supposed quote from Jane's Defence Weekly,
The Black Manta can hover up to 100 miles from its target, collecting photographs and eavesdropping-Janes Defence Weekly
I do not remember ever
seeing a quote on this by Jane's, and further a quick google search on the quote only
returned the page you had
linked to. If this is a quote from Jane's it sounds more like a lighter than air vehicle in a long time-over target loitering, SIGINT role, than a
All of that aside however, on should note; the sighting report did indicate that there was engine noise albeit very faint, and only after it had
I think all of this, combined with the arguments put forth by myself and others here, make a very good case for the TR-3A not being a glider.